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In the figure above, the perimeter of ∆ ACD is how much greater than

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In the figure above, the perimeter of ∆ ACD is how much greater than  [#permalink]

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New post 22 Sep 2017, 00:45
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In the figure above, the perimeter of ∆ ACD is how much greater than the perimeter of ∆ ACB?

(A) 22
(B) 14
(C) 5√5
(D) 7
(E) √2


Attachment:
2017-09-22_1139_001.png
2017-09-22_1139_001.png [ 7.66 KiB | Viewed 626 times ]

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Re: In the figure above, the perimeter of ∆ ACD is how much greater than  [#permalink]

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New post 22 Sep 2017, 01:12
In the figure above, the perimeter of ∆ ACD is how much greater than the perimeter of ∆ ACB?

Let AC = x
Perimeter of ACD = 12+10+x = 22+x
Perimeter of ACB =5+10+x =15+x

Perimeter difference = (22+x)-(15+x) = 7

Answer:D
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Re: In the figure above, the perimeter of ∆ ACD is how much greater than  [#permalink]

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New post 24 Sep 2017, 14:25
Bunuel wrote:
Image
In the figure above, the perimeter of ∆ ACD is how much greater than the perimeter of ∆ ACB?

(A) 22
(B) 14
(C) 5√5
(D) 7
(E) √2


Attachment:
2017-09-22_1139_001.png


perimeter of ∆ ACD - perimeter of ∆ ACB = (12+10+AC) - (5+10+AC) = 22 - 15
= 7

Answer D
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Re: In the figure above, the perimeter of ∆ ACD is how much greater than &nbs [#permalink] 24 Sep 2017, 14:25
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